Miles-per-gallon register



Aug 5 WZ ZO T. L. PARKER muss PER ammo: msexswsa Filed April :5, 1922 2 Sheets-Sheet 1 Aug. 5 9 11924. max/3,552

T. L. PARKER MILES PER GALLON REGISTER Filed April 5, 1922 2 Sheels-Sheet 2 ZZZ Farm/7 M fulcrum THQKIAQ L. PARKER, 01? WEAUX, MONTANA.

MEES-PER-GALLON REGISTER Application filed April e, 1922. Serial no. 548,178.

re all whom may concern:

ids 1t known that l, Trioirns L. PARKER, u citizen of the United States, residing at l l'ibeur, in the county of Wihsux and State Montana, have invented certain new and uselul lmprovements in lililes-pcr-Gsllon Registers, of which the following is a specifelon.

This invention relates to registers and more particularly to s register for indicatregister which may be attuc ed to the rdinery speedometer sud operate in conjunc tion therewith.

With the reading before the driver at all times, it is relatively simple to make adiustinents of carburetor and speed to ob- .)ein the greatest economy of operation. The device further acts as an indicator when anything happens to cut down the efliciency of the motor, warning the operator and giving him an opportunity to locate the trouble before serious injury has occurred.

ln the accompanying drawings, 1 hove shown one embodiment of the invention. in this showing:

Figure l is at "front elevation of the speedometer showing the invention applied,

Figure 2 is a vertical sectional View on line 22 oi Figure 8,

Figure 3 is a. similar view on line 33 of Figure 2, and,

Figure t is e horizontal sectional view on line d--et of Figure 3.

Referring to the drawings, the reference niunerel l designates a casing which is substantially cylindrical and is provided with e lowerezsteusion 2. A speedometerof the ususlconstruction is arranged within the casing. Asshown, a bearing 3 is arranged in the rear well, adapted to support a shaft 4. A'needle 5 is connected to this shalt to revolve therewith. An arcuate piste 6 is supported between the top of the casihgend e partition wall 7. -Th is plate is "providedwith suitable indicie 8 to cooperate with the needle 5, to indicate the speed ofjthe our in the usual manner. I As shown, the upper end off the needle is 0&-

set, as at 9, end arren ed in front of the plate. The front of t e casing is closed by a plate 10, having at slot 11 :iormed therein in front or the plate 6. A glass cover 12 is retained on the front of the cosine by a suitable fastening ring 13. Suitable packing is provided to render the casing eir-tight.

A. bevel gear 1 is arranged on the shsilt i and is adapted to mesh with a segmentul gear 15, carried by e pivoted arm 16. M shown, this arm is mounted in it suitable bracket 17 end is provided with en elongated slot 18. A drive shaft 19. extends upwardly through the casing, being connected to the usual flexible drive 20. This shaft is supported in suitable bearings cerried "by brackets 21 and is provided with a pair of collars 22 and 23. The lower collar rests upon the lower bearing 21 and the collars are normally held spaced from each other by means of a, spring 2%. Arms 25 are pivoted to the collar 22 and arms 26 are pivoted to the collar 23. The arms 26 are provided with balls 27 on their outer ends. The collar 23 is provided with a; pin 28 which is received in the slot 18. The speedometer operates in the usual menner, the speed of the vehicle tending tothrow the balls .27 outwardly by centrifugal force against the tension of the spring 2%, thus drawing the collar 23 downwardly and swinging the arm 16 on its pivot. This revolves the shaft through the medium of gears 14 and 15, and causes the needle 5 to travel in a clockwise direction.

The fuel meter forming the subject metter of the present invention consists of e rotatable shaft 29 which is arranged in the lower extension 2 and is provided with blades -30, closely fitting within the extension. The extension is provided with inlet opening 31 adapted tobe connected to the fuel tank by c pipe 32 and an outlet opening 33 adapted to be connected to the carburetor by a. pipe 34. A plate '35 is arranged transversely of the extension above the fuel inlet opening to force the fuel to flow downwardly around the blades as indicated by the arrows in Figure 2 ofthe drawin s.

The shaft 29 is provided with gear teeth 36 edapted'to mesh with a segmental gear 37, formed on the lower end of a lever 38. As shown, the lever is pivoted at 39 and. extends upwardly into the main portion of lid its

arm i=3 arranged behind the the cashig. The upper end of the lever is provided with a segmental gear 40, meshing with e pinion d1 carried by a shaft 4-2. 'llhe shaft 42 is hollow and extends over the shaft l. The front end of the shaft 41- is mounted in a bearing carried by n61 ate 1 A dislr li is secured to the she t 42 and lj he upper portion is arranged in substantially the same verticsl plane as the plate 6. This dish is provided with suiteble indicia 45 to indicete miles per gallon of fuel consumed,

the indicia is arranged behind an arcuete slot' lfi in the plat i0. The-needle 5 is provided with dov livfildiy extend ing indicating linger operate with indlcie 1.

extension 2 provided wvith e threaded opening 48 A spring 50 to receive e'plug l9. to this plug and to the pivoted s secured in assembling the device, the'ruel line is connec'ed to the openings 31 and 33 and the lug i9 is screwed in. As shown, 'sprovided with a port 51;

ti level will remain constant. e pin, her serves to permit regulation of the tension of the spring 50. This spring issda' ted-to draw the arm 38 toward the side Wei ofthe-caeingand furnish a zeroreedin in the disk 44': when no fuel is passingthrough the-meter. V

"in the operation of the device, essuminv that the vehicle is traveling at a speed 0 portion to the How -eer hour and foit seven miles er hour, as indicated in Figure 2 of the crown s, the flow of the fuel through the fuel member is impeded x As the fuel passes the.

by, the blades. blades, a pressure is exerted on them in proo'fjthe fuel and the shaft 29 is oscilleted causing the disk d tto revolvethroughe' portion of a circle in a clockwise direction against the tension of' spring fidY-Asxthedcvice is illustrated, a

fuel consumptionyof fourteen miles per gallon of. gasoline or other fuel is indicated. Assumin that. the speed of the vehicle is increased to fiftv-seven miles per hour withcut change. ini'l e1 consumption, there will then he no movement-10f the disk 44 but'the needle 6 will edvence' tofifty-seven miles the extension is H will intersect the disk 44 at a point showing a miles-gs rate of sixteen miles per gallon of fuel instead of fourteen, as before, or if the speed of forty-seven miles per hour he maintained and by means of a more efficient adjustment, or other cause, the consumption of fuel is decreased, the disk will then rotate in a counter-clockwise direction due to the reduction of pressure on the blades 30, showing a corresponding higher miles-gs readin In the accompanying drawings, the device is shown as an attachment to an old nary type of needle reading speedometer. It will hoapparent that verious'othe'r forms mey be employed toobtain the desired re sult.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be resorted to Without departing from the spirit of the invention or the scope of the subjoined claims.

,Havlng thus described my invention,

claim:

1. In a device of the character described, a speedometer casing having an extension forming a meter casing, an indicating member arranged in said casing and connected to the vehicle to var nits position according. to the speed of the vehicle, a dish mounted adjacent said indicating member, said disk being provided with suitable indicia to indicate mileage per unit of fuel consumed, a rotatably mounted element erranged in said metercasing and adapted to alter its position according to the flow of fuel through said casino, at springadeph ed to normally retain Sillfl disk in at zero indicating position, and connections be tween sald rotata-bly mounted element and said'disk to vary the-position of said disk.

2. In a deviceof the character described, a speedometer casing having ,an extension forming a meter casing, an indicating menr her arranged in said casing and connected to the vehicle to vary ing to the speed of the vehicle, a disk mounted' adjacent said indicating member,- said. disk being provided with suitable indicis to Bil its position aceord- I indicate mileage per unit of fuel'consumed,

a rotatably mounted element arranged in. said meter casing and adaptedto alter its position according to the flow of fuel through said casing, a spring adapted to normally retain said disk in a zero indicating pos1t1on, connections between said rotatably mountedaelement and said disk. to vary the position of said disk, and common means for adjusting the tension of said spring and. governing the height of liquid 1n saidmeter casing.

3.. Ina device of. the chersoter described,

speedometer easing having a dependin extension forming a meter casin adapt to contain 1i aid to a predetermined level, inlet and outlet pipes communicatin with said casing, said casing being provide with a threaded opening extending therethrongh substantially at the redetermined levelof liquid, a threads plug arranged in said opening, an indicating member arranged in said casing; and connected to the vehicle to position according to the speed of tnevehicie, a disk mounted adgace'nt said indicating member, said their being" rovided with suitable indicia to indicate mieage per unit of fuel consumed, a rotatably mounted element arranged in said meter casing and adapted to alter its position according to the'fiow of fuel through said casing, a spring adapted to normally retain said disk in a zero indicating position, and connections a speed indicator havin a pivoted member controlled by the spec of the vehicle, a flow meter adapted to alter its osition according to thefiow of fuel, a dis rotatably mounted concentric with the pivoted member of the indicator and rovided with indicia associated therewi a inion con nected with said disk, a pivots lever provided with a segment gear meshing with said pinion and operating connections hetvveen said lever and said meter.

6. In a device of the character described, a speed indicator having a pivoted member controlled by the speed of the vehicle, a 'fiOW meter having a pivoted member adapted to alter its position according to the fioW of fuel, a gear carried by the pivoted member of said meter, a disk rotatably mounted concentric with the pivoted member of said indicator and provided with indicia associated therewith, a pinion car-- ried by said disk, a lever pivoted intermediate its ends and provided adjacent its ends with segment gears adapted to mesh with said pinionand said gear, and a spring connected with. said lever to normally retain said disk in zero position.

In testimony whereof I afix my signature in presence of two witnesses.

THOMAS L. manna Witnesses K. M. Mam, L. E. GRANT. 

